Cell having chalcogenide cathode and solvated alkali metal salt electrolyte. [preferred embodiment is Li/solvated metal--Li--halogen salt/TiS/sub 2/]

Patent · Tue Feb 21 00:00:00 EST 1978

OSTI ID:5156722

Francis, R W; Newman, G H

A novel electrochemical cell has the following components: an anode which contains as the anode-active material an alkali metal; a cathode which contains as the cathode-active material a chalcogenide of the empirical formula M'A/sub p/, wherein M' is one or more metals selected from the group consisting of titanium, zirconium, hafnium, niobium, tantalum, and vanadium, A is one or more chalcogens selected from the group consisting of oxygen, sulfur, selenium, and tellurium, and p is a numerical value between about 1.8 and about 3.2; and a solid electrolyte consisting essentially of one or more solvated metal--alkali metal--halogen compounds of the formula ZMX/sub n/, wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P, and As, X is one or more halogens selected from the group consisting of chlorine, fluorine, bromine, and iodine, and n is a numerical value equal to one plus the valence of the metal M. Preferred are the cells wherein the anode is lithium, the cathode contains as its cathode-active material TiS/sub 2/, and the electrolyte consists essentially of a solid solvated metal--lithium--halogen salt.

• Assignee: Exxon Research and Engineering Co.
• Patent Number(s): US 4075397
• OSTI ID: 5156722
• Resource Relation: Patent File Date: Filed date 1 Mar 1977
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
METAL-NONMETAL BATTERIES
DESIGN
CHALCOGENIDES
HALIDES
LITHIUM
LITHIUM COMPOUNDS
TITANIUM SULFIDES
ALKALI METAL COMPOUNDS
ALKALI METALS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELEMENTS
ENERGY STORAGE SYSTEMS
HALOGEN COMPOUNDS
METALS
SULFIDES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250901* - Energy Storage- Batteries- Design & Development